[ Grammar ]
Dave: ___________ you hold your breath for more than a minute?
A. Can
B. Must
C. May
D. Should

Random Topics:
The First Conditional (if/unless)Passive ModalsGerund and InfinitivePresent Progressive or Present SimpleModals of Obligation & ProhibitionVerb & GrammarVerb Form-Ing and Infinitive Verb PatternsGrammar and ReadingTenses and OpinionsOther quiz:
Modal Verbs › ViewI think you ______ talk to your parents about it. I’m sure they’ll give you the best advice.
A. don’t have to
B. should
C. shouldn’t
D. have to
Vocabulary › View
The Smith family members are very serious about their faith and attend ______________ every week.
A. Synagogue
B. Therapy
C. Request
D. Reception
E. Application